How much does it cost to fix boiler error code 9.1.7?

Typical repair cost for the boiler 9.1.7 fault is £120-£200 including labour.

9.1.7 Medium

Boiler Fault Code 9.1.7

Also written as 917 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 9.1.7 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your heating system is having trouble measuring the temperature for your second heating area, which often means that specific zone won't warm up correctly. (As reported on Ideal HP290)

Pick your boiler brand for the 9.1.7 fix

Ideal 9.1.7 1 model

Source

Information for the 9.1.7 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026